config.hpp
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/*
* Copyright (C) 2008 Alex Shulgin
*
* This file is part of png++ the C++ wrapper for libpng. PNG++ is free
* software; the exact copying conditions are as follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef PNGPP_CONFIG_HPP_INCLUDED
#define PNGPP_CONFIG_HPP_INCLUDED
#include <stdlib.h>
// Endianness test
#if defined(__GLIBC__)
#include <endian.h>
#elif defined(_WIN32)
#define __LITTLE_ENDIAN 1234
#define __BIG_ENDIAN 4321
#define __BYTE_ORDER __LITTLE_ENDIAN
#elif defined(__APPLE__)
#include <machine/endian.h>
#include <sys/_endian.h>
#elif defined(__FreeBSD__)
#include <machine/endian.h>
#include <sys/endian.h>
#elif defined(__sun)
#include <sys/isa_defs.h>
#else
#error Byte-order could not be detected.
#endif
// Determine C++11 features
#if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__) && defined(__GXX_EXPERIMENTAL_CXX0X__)
#define PNGPP_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
// gcc c++11 support list
// http://gcc.gnu.org/projects/cxx0x.html
// gcc supports static_assert since 4.3
#if (PNGPP_GCC_VERSION >= 40300)
#define PNGPP_HAS_STATIC_ASSERT
#endif
// gcc supports std::move since 4.6
#if (PNGPP_GCC_VERSION >= 40600)
#define PNGPP_HAS_STD_MOVE
#endif
#undef PNGPP_GCC_VERSION
#elif defined(_MSC_VER)
// MS Visual C++ compiler supports static_assert and std::move since VS2010
// http://blogs.msdn.com/b/vcblog/archive/2011/09/12/10209291.aspx
#if (_MSC_VER >= 1600)
#define PNGPP_HAS_STATIC_ASSERT
#define PNGPP_HAS_STD_MOVE
#endif
#endif
#endif // PNGPP_CONFIG_HPP_INCLUDED